On 10/11/16 2:23 PM, Thad Guidry wrote:
Kingsley,
You might ask others on the list who could help more with providing the WD - Schema.org mappings or get them into a format that you want...or an RDF dump file.
I just don't have the knowledge to assist you with that via SPARQL. (i.e., I am not a SPARQL guru)
Thad,
I assumed an understanding of how wikidata models properties. Anyway, I'll take a look as what I requested should be possible, assuming there isn't new bent on RDF data modeling that exist in this data.
I'll take it from here.
Thanks for your assistance :)
Kingsley
On Tue, Oct 11, 2016 at 1:11 PM Kingsley Idehen <kidehen@openlinksw.com mailto:kidehen@openlinksw.com> wrote:
On 10/10/16 5:31 PM, Thad Guidry wrote:Kingsley, use shortcut syntax instead. Also look at how the many examples show doing tihngs. http://tinyurl.com/hkv8z7mThad, Not getting the point you are trying to articulate i.e., the solution isn't comprised strictly of <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> relations. I am assuming <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> identifies equivalentClass relations i.e., <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> owl:equivalentProperty owl:equivalentClass . You should be able to articulate the equivalent of the following, using SPARQL against Wikidata: SELECT DISTINCT ?s ?relation ?o WHERE { ?s owl:equivalentClass ?o. BIND (owl:equivalentClass AS ?relation) FILTER (isIRI(?s)) FILTER (isIRI(?o)) } LIMIT 100 Live Solution Link: http://lod.openlinksw.com/sparql?default-graph-uri=&query=SELECT+DISTINCT+%3Fs+%3Frelation+%3Fo%0D%0AWHERE+%7B+%3Fs+owl%3AequivalentClass+%3Fo.%0D%0A++++++++BIND+%28owl%3AequivalentClass+AS+%3Frelation%29%0D%0A++++++++FILTER+%28isIRI%28%3Fs%29%29+%0D%0A++++++++FILTER+%28isIRI%28%3Fo%29%29%0D%0A++++++%7D%0D%0ALIMIT+100&format=text%2Fx-html%2Btr&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000&debug=on KingsleyOn Mon, Oct 10, 2016 at 1:50 PM Kingsley Idehen <kidehen@openlinksw.com <mailto:kidehen@openlinksw.com>> wrote: On 10/9/16 1:34 PM, Thad Guidry wrote:Kingsley, The mappings are already in Wikidata (we still have a few properties left to map, but the classes are done, except for a few in pending.schema.org <http://pending.schema.org>. You can just query them in some fashion such as this: http://tinyurl.com/h9vjqd8Thad, Shouldn't the following query return all Classes participating in an <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> relation? : SELECT ?s ?relation ?o WHERE { ?s <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> ?o. BIND (<https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> AS ?relation) } LIMIT 100 Query Link: https://query.wikidata.org/#%0A%0ASELECT%20%3Fs%20%3Frelation%20%3Fo%0AWHERE%20%7B%20%3Fs%20%3Chttps%3A%2F%2Fwww.wikidata.org%2Fwiki%2FProperty%3AP1709%3E%20%3Fo.%20%0A%20%20%20%20%20%20%20%20BIND%20%28%3Chttps%3A%2F%2Fwww.wikidata.org%2Fwiki%2FProperty%3AP1709%3E%20AS%20%3Frelation%29%20%0A%20%20%20%20%20%20%7D%20%0ALIMIT%20100%0A If not, can you formulate something closer to that output which makes matters easier should you not have an RDF dump available etc.. KingsleyOn Sun, Oct 9, 2016 at 11:09 AM Kingsley Idehen <kidehen@openlinksw.com <mailto:kidehen@openlinksw.com>> wrote: On 10/8/16 5:04 PM, Thad Guidry wrote:Class mappings are almost complete Kingsley. We were trying to get Wikidata to the point where it is easy for folks to do trivial queries right inside WDQS as part of WD Goals for 2016.Thad, Here is a post (brought up to date in last day) that demonstrates owl:equivalentClass reasoning and inference. Once I have a link to the new mappings I will integrate into this demo. Note, this particular LOD Cloud Cache instance has 30 Billion+ triples against which the owl:equivalentClass inference is being applied, at query evaluation time. [1] http://kidehen.blogspot.com/2014/02/class-equivalence-based-reasoning.html KingsleyOn Sat, Oct 8, 2016, 2:38 PM Kingsley Idehen <kidehen@openlinksw.com <mailto:kidehen@openlinksw.com>> wrote: On 10/6/16 2:57 PM, Thad Guidry wrote:Hello team :) So while I'm helping with the Wikidata - Schema.org mappings, a request came in to expose subcategories of an existing Wikipedia category. For example, say I start with this topic: https://www.wikidata.org/wiki/Q27119725 Parking facilities The topic's main category is shown as "Category:Parking facilities" and that has links to Wikipedia, specifically a Wikipedia category link, and where the WP category page has subcategories that I would like to expose somehow in whichever way is *easiest* currently with our tools, apis, etc. Can it all be done in SPARQL against some services that already expose WP subcategories given a specific category ? Or is there an API that does this already ? other tools that might expose WP categories ? The IDEAL GOAL is to query 'equivalent class' = schema.org/ParkingFacility <http://schema.org/ParkingFacility> and get back the WP categories *in one shot or query or api call.* http://schema.org/ParkingFacility * Parking facilities in India <https://en.wikipedia.org/wiki/Category:Parking_facilities_in_India> * Parking facilities in the United States <https://en.wikipedia.org/wiki/Category:Parking_facilities_in_the_United_States> * Aircraft hangars <https://en.wikipedia.org/wiki/Category:Aircraft_hangars> * Garages (parking) <https://en.wikipedia.org/wiki/Category:Garages_%28parking%29> * Railway depots <https://en.wikipedia.org/wiki/Category:Railway_depots> Any gurus ?Hi Thad, If there are owl:equivalentClass mappings in some Linked Data Space, and the SPARQL service associated with said Data Space supports owl:equivalentClass reasoning, then the answer to your question is yes. What unknown right now is the class mappings between Wikidata and Schema.org. If a dump of those exist, the rest is trivial :) -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ <http://www.openlinksw.com/blog/%7Ekidehen/> Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata-- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ <http://www.openlinksw.com/blog/%7Ekidehen/> Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata-- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ <http://www.openlinksw.com/blog/%7Ekidehen/> Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata-- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ <http://www.openlinksw.com/blog/%7Ekidehen/> Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata
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